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H. A. PEDRICK.

CALKING MACHINE.

APPLICATION FILED Dsc. 1, 1920.

1,431,033., mem@ @an 3, 1922..

2 SHEETS-SHINE'.r l,

AIIIA. PEDRICK.

CALKING MACHINE.

APPLICATION FILED DEC. 7, IQZO L431,033 Patented 001:. 3, 1921 2 SHEETS-SHEET 2.

Patented @et d, 1922..

norman a. Mannion, or nana, riannsrtvanra.

'I Gamme raacnrivn.

Application led December 7, 1920. aerial No. 429,032.

T o all whom it may concern Be it known that I, HowARD A.. lPnpnioii, a citizen of the United States, residing in Bala, Montgomery County, Pennsylvania, have invented Calking Machines, of which the following is a specification.

One object of this invention is Ato provide a relatively simple, substantial and easily operated device for containing and forcibly discharging plastic or semi-solidfiuid material, as well as liquids,l especially of a viscous nature; and the invention more 'especially contemplates a novel form of holder having associated with it novel means for causing delivery from it of the contained material.

A further object'of the invention is to provide a novel' form of gun especially adapted to utilize compressed air for the expulsion of the plastic or other material which it contains and which shall be of such construction as to insure the complete delivery of each charge as well as to facilitate its recharging; the arrangement of parts being such as to permit of its rapid, convenient and eiicient use.

rl`hese objects and other advantageous ends l attain as hereinafter set forth, reference being had to the accompanying drawings, in which,` n

Figure 1 is a longitudinal vertical section of a calking machine constructed in accordance with my invention;

Fig. 2 is a front elevation of the structure shown in F ig. 1; and

Figs. 3 to 5 are vertical longitudinal sections of modified forms of the invention.

' ln Figs. 1 and 2 of the above drawings, 1 represents the body of the gun which is preferably of the frusto-conical form and has at its small or apex end a conveniently removable closure 12 which in the present instance is screwed into it. rlihis closure member has in its inner face a conical recess 13 terminating in a central passage 14 of reduced cross section which is internallyy threaded or otherwise constructed for the reception of a delivery nozzle 15. Obviouslyv embodiment of the invention, is made of resilient material such as sheet rubber. The head 4 is so formed asto provide a chamber 3 between itself and the diaphragm 2 and has connected to ita suitable handle, in the present instance consisting of a pair of posts or studs6 and 7 projecting outwardly from 1t and rigidly connected by a hand-hold or equivalent member 5 constituting the body of the handle. v

ln this form of the invention, the stud 6 is made tubular and has secured on its outer end a three-way cock or valve 9 connected through a conduit 11 to a source of air underpressure. The movable member 16 of this valve is so constructed that the passage 8 through the stud 6 may be placed at will Ain communication with the air supply conduit ll or with an exhaust port l0. As a consequence air under pressure may be delivered to the chamber 3 from the conduit 11 or exhausted from said chamber as desired.

Under conditions of use the nozzle meinber or closure 12 is removed from the body by means of a wrench applied to its hexagonal extremity and any desired plastic material such as putty, calking compounds, grease, etc. may be placed in its main cavity 20. The member 12, with or without the delivery pipe l5, is then screwed into positionin the end of the body andl by proper manipulation of the valve member 16, air under pressure is delivered to the chamber 3.

The diaphragm 2 is thereupon/4 forced against the mass of plastic material in the chamber 20 causing this to be discharged through the nozzle, being also pressed by the air against the inclined sides of the body so that all of the material adhering thereto is forced out. The rate of delivery of the material may be regulated by the valve member 16 and when the body has beenV emptied, said member of the valve is turned to permit the air confined between the diaphragm 2 and the head 4 to be exhausted, whereupon saiddiaphragm returns to its original position by virtue of itsresiliency. rlhe meinber 12 may thereupon be removed and another charge of material placed in the body.

lfdesired l ma, also construct my device as shown in ig. 3 in which case the body or plastic-containing structure consists of two substantially similar cup-shaped structures 21 and 22, preferably having their edges flanged and having confined between` them a diaphragm 2a of a fiexible material such as leather or the like,'of such shape that it will completely or approximately conform to ,or lie a ainst the `inner surface ofv either of the boy members 21 and v22. Of these, the former is provided with a delivery nozzle member 12EL and the latter structure has connected to or formed integral with it a handle structure 23 formed with a passa e 24' which at its outer end is connected'tf rough a valve 9 With' a suitable air source. As before, the inner end of the passage terminat'es at the center of the inner face of the obviously immaterial as to Just where this passage enters or where the air\controlling valve is placed so that it is possible to de-` liver the air to and exhaust it from thespace between the diaphragm 2 and the inner face of the cup-shaped member 22.

The plastic or other material to bev de` livered bythe device is introduced into the chamber 20a between the diaphragml 2a andv the body member 21 either through the open- 'ing provided by removing the nozzle member 12a or in any other manner. Thereafter air under'pressure is admitted through the valve 9 and the passage 24, and the flexible diaphragm 2*- 4acts on the material in the body to force it out through the passage in said nozzle member. ing the nozzle member when it is desired to ll the device I may provide the body with a side opening normally closed by a conveniently removable plug or cap 25 as shown in Fig. l or the body may be screwed to or otherwise made to'be easily detachable from the'head as shown in F ig. 5. Inthe latter case the diaphragm is preferably clamped to. the head by means of a ring. 26 held-in place by screws 27 sol that said head and body may be separated to permit of the lat- `body member227 although it is Instead of remov-l ter being filled, and thereafter reconnected prior to the introduction of air to the chamber 3 when the plastic material in the body lis to be expelled.

In any case the material in the body of the device is forcibly and completely delivered therefrom and such dellvery may be convenientl controlled by the valve 9. Moreover the device may be lquickly refilled, and since the air under pressure acts on the material through the `mediu1n of the diaphragm, itdo'es not tend to blow through said material Without ejecting it, as is the case when the latter is semi-solid or exceptionally viscous, but on the contrary causes it to be completely delivered at any desired rate. p

I claim: v

1. The combination of a casing of substantiall conical form having a normally closed filling opening'in its side; a removable outlet nozzle at the smaller end of said I casing; a flexible diaphragm mounted at the basal end ofthe casing; a head for the casing mounted to cooperate with the diaphragm to form anfair chamber; and means for deliveringv air under pressure to said air chamber to force the diaphragm into the conical portion 'of the casing. l

2. The combination of a casing having an outlet; a head for said casing; aflexible diainA the. casing through the outlet.

HOWARD A. PEQRICK. 

